c7ae1a2 - use gen_contents_index to re-index haddock

Authored and Committed by petersen 15 years ago
    - use gen_contents_index to re-index haddock
    - add %%pkg_docdir to cabal_configure
    - requires(post) ghc for haddock for doc
    - improve doc file lists
    - no longer need to create ghost package.conf.old
    - remove or rename alternatives files more consistently
    
        
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